JVC AV32L2EUBL, Service Manual

Page: 21 / 108

No. 51817
AV32L2EUGR
AV32L2EUBL
AV32L2EUGY
21
Item
Measuring
instrument
Test point Adjustment part Description
7.COLOUR
(PAL/SECAM/NTSC)
[Method of adjustment using measuring instrument]
PAL COLOUR (PAL COLOUR)
1. Receive a PAL full field colour bar signal(75% white).
2. Select 2.V/C from the SERVICE MENU.
3. Select 7.COLOUR with the FUNCTION UP/DOWN key.
4. Set the initial setting value of PAL COLOUR with the
FUNCTION - or + key.
5. Connect the oscilloscope between TP-47B and TP-E (
#
)
6. Adjust PAL COLOUR and bring the value of (A) in the
illustration to +5V (voltage difference between white (w) and
blue (B)).
7. Press the MENU key and memorize the setting value.
SECAM COLOUR (SECAM COLOUR)
1. Receive a SECAM full field colour bar signal(75% white).
2. Set the initial setting value of SECAM COLOUR with the
FUNCTION -/+ key.
3. Adjust SECAM COLOUR and bring the value of
(A)
of the
illustration to
+4V
(W
～
B).
4. Press the MENU key and memorize the setting value.
(NTSC 3.58 COLOUR)
1. Input a NTSC 3.58MHz COMPOSITE VIDEO signal (full field
colour bar with 75% white) from the EXT terminal.
2. Set the initial setting value of NTSC 3.58 COLOUR with the
FUNCTION -/+ key.
3. Adjust NTSC 3.58 COLOUR and bring the value of
(A)
of the
illustration to
+11V
(W
～
B).
4. Press the MENU key and memorize the setting value.
Adjustment
of SUB
COLOUR
Ⅱ
Ⅱ Ⅱ
Ⅱ
Signal
generator
Oscilloscope
Remote
control unit
TP-47B
TP-E(
#
# #
#
)
[CRT
SOCKET
PWB ]
NTSC COLOUR
(NTSC 4.43 COLOUR)
1. Input a NTSC 4.43MHz COMPOSITE VIDEO signal (full field
colour bar with 75% white) from the EXT terminal.
2. Set the initial setting value of NTSC 4.43 COLOUR with the
FUNCTION -/+ key.
3. Adjust NTSC 4.43 COLOUR and bring the value of
(A)
of the
illustration to
+11V
(W ～ B).
4. Press the MENU key and memorize the setting value.
(+)
(-)
0
W
Cy Mg B
(A)